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2100000998 = 21051999049
BaseRepresentation
bin111110100101011…
…0111100011100110
312102100112002210202
41331022313203212
513300100012443
6544214150502
7103016466614
oct17512674346
95370462722
102100000998
11988439917
124a7352432
132760bb454
1415cc8a6b4
15c45677b8
hex7d2b78e6

2100000998 has 8 divisors (see below), whose sum is σ = 3153001800. Its totient is φ = 1049000400.

The previous prime is 2100000997. The next prime is 2100001021. The reversal of 2100000998 is 8990000012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2100000998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100000997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497423 + ... + 501626.

It is an arithmetic number, because the mean of its divisors is an integer number (394125225).

Almost surely, 22100000998 is an apocalyptic number.

2100000998 is a deficient number, since it is larger than the sum of its proper divisors (1053000802).

2100000998 is a wasteful number, since it uses less digits than its factorization.

2100000998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000102.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 2100000998 is about 45825.7678386298. The cubic root of 2100000998 is about 1280.5793678475.

The spelling of 2100000998 in words is "two billion, one hundred million, nine hundred ninety-eight", and thus it is an aban number.

Divisors: 1 2 1051 2102 999049 1998098 1050000499 2100000998